5 Clamp arm Guide pins assembly Stainless steel Structural steel Stainless steel Tool steel Refer to page 183 for the guide pins assembly. 179 Pin Clamp Cylinder USeries Series CKQGU/CKQPU Replacement Procedure is P.374 Construction CKQGUA50 The below figures indicate the CKQGUA50-RAL. CKQPUA50 The below figures indicate the CKQPUA50-RAL. w e w e r r !4 !4 !5 !